The GMC Truck Division of General Motors produces powerful pickups in three sizes plus sport-utility vehicles in two formats with stretched and deluxe treatments. In addition, GMC's first crossover SUV comes in 2007 behind the badge of Acadia. New platforms work for the Sierra pickup and GMC's full-size Yukon and super-size Yukon XL SUVs.
The new crossover SUV for GMC has an integrated frame with a lower step-in height and car-like driving responses. Acadia's spacious cabin provides seats for as many as eight passengers on three rows and lots of cargo room -- up to 117 cubic feet with second and third tiers of seats down. Powertrain is GM's 3.6-liter V6 with variable valve timing (VVT) for 267 hp through a new fuel-saving Hydra-Matic 6T75 six-speed automatic. And there are front-wheel-drive (FWD) and all-wheel-drive (AWD) traction modes. Acadia's option sheet lists a triple-zone climate system, power liftgate and dual SkyScape sunroof.
Sierra trucks from 2006 in LD (light-duty) half-ton 1500 series and HD (heavy-duty) variety for 2500 (three-quarter-ton) and 3500 (one-ton) series repeat as a new design for Sierra arrives in 2007. Engines for Sierra Classic trucks range from a 4.3-liter V6 at 195 hp and a 6.6-liter turbo-diesel for 360 hp to a 6.0-liter V8 worth 345 hp for deluxe Denali Classic. A hybrid electric version called Sierra Hybrid saves fuel by teaming a 5.3-liter V8 with an electric motor. And a FlexFuel plant burning E85 ethanol is also available from a 5.3-liter V8 with 295 hp.
Sierra trucks in half-ton 1500 series upgrade in 2007 with new sheetmetal styling, revamped structures and a host of engines which result in class-capping power, tow and fuel economy ratings. There are three cab configurations and three bed lengths, multiple suspension setups and V6 or V8 powertrains. Trims culminate with deluxe Sierra Denali, which stocks a 6.2-liter V8 pumping 400 hp. A FlexFuel 5.3-liter V8 worth 315 features GM's Active Fuel Management (AFM) technology to conserve fuel. Tow capacity reaches 10200 pounds for Sierra Crew Cab stocking a 6.0-liter V8 with 367 hp.
GMC's Canyon pickup measures up as a mid-size model with body styling showing design cues borrowed from Sierra. Cabs conform as a two-door Regular Cab, the Extended Cab with two rear-hinged doors set behind the two front doors, and Crew Cab with four front-hinged doors. New engines of in-line design go to Canyon in 2007. The entry plant is a 2.9-liter four-cylinder unit with variable valve timing (VVT) making 185 hp. Optional is a 3.7-liter VVT five-cylinder unit which romps with 242 hp. A Tire Pressure Monitoring System (TPMS) applies to every 2007 Canyon trim.
Envoy the mid-size wagon comes in regular-length and stretched XL editions with a third row of seats. Deluxe variations -- Envoy Denali and Envoy XL Denali -- stock luxurious comforts with choices for two-wheel-drive (2WD) or four-wheel-drive (4WD) traction. Denali models tote a 300-hp 5.3-liter V8 with GM's Active Fuel Management (AFM) technology to conserve fuel. Standard powertrain for Envoy and Envoy XL is a 4.2-liter in-line-six with 291 hp. Stock safety gear for all Envoys ranges from StabiliTrak electronic vehicle stability controls and Proactive Roll Avoidance (PRA) to a TPMS.
GMC's full-size SUVs consist of Yukon and stretched Yukon XL plus deluxe companions Yukon Denali and Yukon XL Denali. The Denali editions are lined with leather and offer on-demand all-wheel-drive (AWD) traction via GM's automatic Autotrac system. All ride on a new platform with wider track and lower center of gravity to enhance the ride quality. Powerful engines propel Yukon, including a 5.3-liter V8 with AFM for 320 hp plus fuel-burn scores to 21 mpg and Denali's 6.2-liter VVT V8 ripped to 380 hp. Yukon's re-do extends to spacious cabins with three tiers of seats and upgraded materials.